Question
In Fig.it thing siven that $\angle=6{ }^{\circ \prime \prime}$, find all other angles.
✓
Answer
$\angle 2=115^{\circ}, \angle 3=65^{\circ}, \angle 4=115^{\circ}$
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Similar questions
Identify the numerical coefficients of terms (other than constants) in the following expressions.
(i) $5-3 t^2$
(ii) $1+t+t^2+t^3$
(iii) x + 2xy + 3y
(iv) 100m + 1000n
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(vi) 1.2a + 0.8b
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(viii) 2(l + b)
(ix) $0.1 y+0.01 y^2$
→(i) $5-3 t^2$
(ii) $1+t+t^2+t^3$
(iii) x + 2xy + 3y
(iv) 100m + 1000n
(v) $-p^2 q^2+7 p q$
(vi) 1.2a + 0.8b
(vii) $3.14 r^2$
(viii) 2(l + b)
(ix) $0.1 y+0.01 y^2$
Arrange the following fraction in ascending order:
$\frac{4}{6}, \frac{3}{8}, \frac{6}{12}, \frac{5}{16}$
→$\frac{4}{6}, \frac{3}{8}, \frac{6}{12}, \frac{5}{16}$
Look at following figures and classify each of the triangles according to its
(a) sides $\quad$ (b) angles
→(a) sides $\quad$ (b) angles
Study the double bar graphs given below and answer the following questions:
$a.$ Which sport is liked the most by Class $VIII$ students?
$b.$ How many students of Class $VII$ like Hockey and Tennis in all?
$c.$ How many students are there in Class $VII$?
$d.$ For which sport is the number of students of Class $VII$ less than that of Class $VIII?$
$e.$ For how many sports students of Class $VIII$ are less than Class $VII?$
$f.$ Find the ratio of students who like Badminton in Class $VII$ to students who like Tennis in Class $VIII.$
→$a.$ Which sport is liked the most by Class $VIII$ students?
$b.$ How many students of Class $VII$ like Hockey and Tennis in all?
$c.$ How many students are there in Class $VII$?
$d.$ For which sport is the number of students of Class $VII$ less than that of Class $VIII?$
$e.$ For how many sports students of Class $VIII$ are less than Class $VII?$
$f.$ Find the ratio of students who like Badminton in Class $VII$ to students who like Tennis in Class $VIII.$
A number consists of two digits whose sum is $8.$ If $18$ is added to the number its digits are reversed. Find the number.
→In Fig. the radius of quarter circular plot taken is $2m$ and radius of the flower bed is $2m$. Find the area of the remaining field.
→ Find the value of n, where n is an integer and $2^{\text{n-5}}\times6^{\text{2n-4}}=\frac{1}{12^{4}\times2}$
→Draw two parallel lines at a distance of $5\ cm$ apart.
→The data given below shows the production of motor bikes in a factory for some months of two consecutive years.
Study the table given above and answer the following questions:
$a.$ Draw a double bar graph using appropriate scale to depict the above information and compare them.
$b.$ In which year was the total output the maximum?
$c.$ Find the mean production for the year $2007.$
$d.$ For which month was the difference between the production for the two years the maximum?
$e.$ In which month for the year $2008$, the production was the maximum?
$f.$ In which month for the year $2007$, the production was the least?
→|
Months
|
Feb
|
May
|
August
|
October
|
December
|
|
2008
|
$2700$
|
$3200$
|
$6000$
|
$5000$
|
$4200$
|
|
2007
|
$2800$
|
$4500$
|
$4800$
|
$4800$
|
$5200$
|
$a.$ Draw a double bar graph using appropriate scale to depict the above information and compare them.
$b.$ In which year was the total output the maximum?
$c.$ Find the mean production for the year $2007.$
$d.$ For which month was the difference between the production for the two years the maximum?
$e.$ In which month for the year $2008$, the production was the maximum?
$f.$ In which month for the year $2007$, the production was the least?
Find the missing values.
→| S.No. | Base | Height | Area of the triangle |
| (i) | 15 cm | ... | $87 cm^2$ |
| (ii) | ... | 31.4 mm | $1256 cm^2$ |
| (iii) | 22 cm | ... | $170.5 cm^2$ |