Question

Find The Area of All Given Triangles


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Answer 1

Given:-

A)

• Base = 4 cm
• Height = 3 cm

B)

• Base = 5cm
• Height = 3.2cm

C)

• Base = 3 cm
• Height = 4 cm

D)

• Base = 3 cm
• Height = 2 cm

To Find :-

• Area of Triangle

Formula To be used:-

• $\sf\dfrac{1}{2}$ $\sf{ × b × h }$

Solution:-

A) = Area of Triangle = $\dfrac{1}{2}$ × b × h

= $\dfrac{1}{\cancel{2}}× 4 × 3$

= $\sf{\fbox{6~cm²}}$

B) = Area of Triangle = $\dfrac{1}{2}$ × b × h

= $\dfrac{1}{2}$ × 5 × 3.2

= $\dfrac{1}{2} × {\cancel {5}} × \dfrac{32}{\cancel {10}}$

$\dfrac{1}{\cancel{2}} × {\cancel{5}^{1}} × \dfrac{\cancel{ {32}^{16} }}{\cancel {10_2}} = 8\sf \: cm {}^{2}$

= $\sf{\fbox{8~ cm²}}$

C) = Area of Triangle = $\dfrac{1}{2}$ × b × h

= $\dfrac{1}{2}$ × b × h

= $\sf\dfrac{1}{\cancel{2}} \times 3 × {\cancel{4}^{2}}$

= $\sf{\fbox{6 ~cm²}}$

D) = Area of Triangle = $\dfrac{1}{2}$ × b × h

= $\dfrac{1}{\cancel{2}} × 3 × {\cancel{2}}$

= $\sf{\fbox{3 ~cm²}}$