Question

find the area of triangle whose base is 42 cm and height is 35 cm​

Answer 1

Question:-

find the area of triangle whose base is 42 cm and height is 35 cm.

Answer:-

• The area of triangle is 735 cm².

To find:-

• Area of triangle

Solution:-

• Base of triangle = 42 cm
• Height of triangle = 35 cm

$\boxed{ \large{area = \frac{1}{2} \times base \times height}}$

$\implies \: area = \frac{1}{2} \times 42 \times 35 \\ \\ \implies \: area =21 \times 35 \\ \\ \implies \: area =735 \: {cm}^{2}$

• The area of triangle is 735 cm².

Answer 2

ɢɪᴠᴇɴ :-

• Base if the triangle = 42cm
• Height of the triangle = 35cm

ᴛᴏ ꜰɪɴᴅ :-

• Area of triangle.

ꜱᴏʟᴜᴛɪᴏɴ:-

As we know that,

$\boxed{ \large\tt{area = \frac{1}{2} \times base \times height}}$

$\begin{lgathered}:\implies\tt \: area = \frac{1}{2} \times 42 \times 35 \\ \\ :\implies \tt\: area =21 \times 35 \\ \\ </p><p>:\implies \tt\: area =735 \: {cm}^{2}\end{lgathered}$

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Triangle:-

• Triangle is a polygon.
• Triangle has 3 sides, 3 vertices and 3 angles.

Types of triangles :-

[Based on sides]

• Equilateral triangle : Has all sides equal.

• Isosceles triangle : Has two sides equal.

• Scalene triangle : Has no side equal.

Some other formulae:-

✼Area of rectangle = Length × Breadth

✼ Area of square = (side)²

✼Perimeter of rectangle = 2( length + breadth )

✼ Perimeter of square = 4 × side.