Question

the area of triangle is equal to the area of rectangle whose length and breadth are 20 cm and 15 CM rest the respect respectively calculate the height of the rectangle if its base measures 30 centimetres

Answer 1

area of rectangle = length × breadth

= 20cm × 15cm

=300cm^2

given

area of rectangle = area of triangle

we have to find the height of the triangle

we know that

area of triangle = 1/2 × base × height

(given base is 30cm)

300cm^2 = 1/2 × 30cm ×h

h= 300cm^2 × 2 / 30cm

h = 20cm

Hope it Helped you

Answer 2

Answer:

Height=20cm

Step-by-step explanation:

Area of rectangle=Area of the triangle

Finding the area of the rectangle to help find the height of the triangle:

Length=20m

Breath=15cm

Area of a rectangle= breath x length

Area=20cm x 15cm

Area = 300cm

Finding the height of the triangle:

Area=300cm

Base=30cm

Height=?

Triangle area formula:

1/2 x base x height= area of a triangle

Substituting the values:

1/2 x 30cm x ?= 300cm

15?=300cm

?= 300cm/15cm

?= 20cm

height=20cm