Question

find the base of triangle whose area is 90 cm2 and height 12 cm​

Answer 1

Answer:

Given :-

• Area of a triangle is 90 cm² and height is 12 cm.

Find Out :-

• Base of a triangle.

Formula Required :-

➦ Area = $\dfrac{1}{2} \times Base \times Height$

Solution :-

Given :-

➡ Area = 90 cm²

➡ Height = 12 cm

Let, the base of the triangle be x metre

According to the question,

➛ $90 =\: \dfrac{1}{2} \times 12 \times x$

➛ $90 =\: 6 \times x$

➛ $90 =\: 6x$

➛ $6x =\: 90$

➛ $x =\: \dfrac{90}{6}$

➠ x = 15 cm

$\therefore$ The base of the triangle is 15 cm.

Answer 2

Given:

Area of triangle =90cm²

Height of triangle=12cm

Needed:

The base of the triangle

Equation:

Let x represent the missing factor

A=1⁄2×base×height

90= 1⁄2×12×x

⇒6x=90

⇒x=⁹⁰/₆​=15cm

Hence, the base of the triangle is 15cm.

I hope it helps you. Good luck solving, mathematician