Question

the perimeter of a rhombus is 45cm. il height is 8cm, calculate tha area.​

Answer 1

Answer:

90 cm square

Step-by-step explanation:

we know that all sides of a rhombus are so,side of a rhombus =perimeter/4 =45/5 =11.25

Answer 2

Answer:

The area of the rhombus is 90 cm².

Step-by-step explanation:

Given :

Perimeter of the rhombus = 45 cm

Height = 8 cm

To find :

Its area

Solution :

The sides of the rhombus are equal. Divide the perimeter by 4 to get the measure of the side.

$\sf{\implies} \: 45 \div4 \\ \\ \sf{\implies} \: \dfrac{45}{4} \: ........(Measure \: of \: one \: side)$

$\rule{300}{1.5}$

Side is a base of the rhombus.

$\bigstar \: \boxed{\sf{Area = Base \times Height}}$

$\sf{\implies} \: \dfrac{45}{4} \times 8$

$\sf{\implies} \: 45 \times 2$

$\sf{\implies} \: 90$

Area = 90 cm²

$\therefore$ The area of the rhombus is 90 cm².