Question

Find the area of a right triangle with a base of 18 cm and height of 6 cm.
A) 36 cm2
B) 54 cm2
C) 108 cm2
D) 192 cm2

Answer 1

Answer:

$area \: of \: right \: angled \: triangle \: = \frac{1}{2} b \times h \\ \\ area \: = \frac{1}{2} 18 \times 6 \\ \\ = 54 {cm}^{2} \\ \\ \\ \\ hope \: it \: helps \: u \\ \\ \\ \\ follow \: me$

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Answer 2

~Area of right triangle

= 1/2 x base x height

Here,

• Base = 18cm
• Height = 6cm

Area = 18 x 6

Area = 1/2 108cm

Area = 54cm²

~Answer = option (b)

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Other formulas :-

• Area of equilateral triangle

= √3/4 x a²

•| Area using heron's formula

= √s(s - a)(s - b)(s -c)

where, s is semi perimeter

•| Perimeter of triangle

= a + b + c

•| Perimeter of equilateral triangle

= 3a