S Purkayastha Solutions for Chapter: Perimeter and Area, Exercise 4: Check Point

Find the missing values.

(i) Base$=15 \text{cm}$

Height $=-$

Area of the triangle$=81{\text{ cm}}^2$

Find the missing values.

(ii) Base$=-$

Height $=31.4\text{ cm}$

Area of the triangle${\text{=1256 cm}}^2$

Find the missing values.

(iii) Base$=22 \text{cm}$

Height $=-$

Area of the triangle$=170.5{\text{ cm}}^2$

In the figure, find $BC$, if the area of the triangle $ABC$ is $36{\text{ cm}}^2$ and the height $AD$ is $3 \text{cm}$.

In the given figure, $△ABC$ is a right-angled triangle. $AD$ is perpendicular to $BC$. If $AB=5 \text{cm}$, $BC=13 \text{cm}$ and $AC=12\text{ cm}$, find the area of $△ABC$. Also, find the length of $AD$.

Find the area of shaded region of each of the following figures.

Find the area of shaded region of each of the following figures.

Find the area of shaded region of each of the following figures.