Question

Triangle is half of the rectangle. Area of the rectangle 20sq.cm.find the area of triangle

Answer 1

Answer:

Answer

Correct option is

A

20 cm.

The length of rectangle =20cm

The breadth of rectangle =15cm

The area of rectangle =l×b

⇒ =20cm×15cm=300cm

2

The area of triangle =300cm

2

The base of triangle is =30cm

By given,

2

1

×30×h=300

⟹h=20cm

The height of triangle =20cm.

Answer 2

Step-by-step explanation:

Given that

Area of rectangle is 20sq cm

Area of Triangle is half of area of rectangle

To find area of triangle

$solution$

$area \: of \: triangle \: = \frac{1}{2} \times area \: of \: rectangle \\ area \: of \: triangle = \frac{1}{2} \times 20$

area of triangle is

$area \: of \: triangle \: is \: 10 {cm}^{2}$