434,500 views
19 votes
19 votes
Can somebody help me solve this inequality

Can somebody help me solve this inequality-example-1
User Asaf Hanish
by
2.7k points

1 Answer

11 votes
11 votes

Answer:

108 cm²

Explanation:

The composite shape can be divided as shown into a trapezoid and a triangle. The area of the shape is the sum of the areas of those parts.

__

trapezoid

The top portion of the shape is marked as a trapezoid with bases 12 cm and 6 cm, and height 6 cm. Its area is given by ...

A = 1/2(b1 +b2)h

A = 1/2(12 cm +6 cm)(6 cm) = 1/2(18 cm)(6 cm) = 54 cm²

__

triangle

The bottom portion of the shape is marked as a triangle. The triangle has a base of 12 cm and a height of (15 cm -6 cm) = 9 cm. Its area is ...

A = 1/2bh

A = 1/2(12 cm)(9 cm) = 54 cm²

__

total area

The area of the composite figure is the sum of the areas of its parts:

total area = trapezoid area + triangle area

total area = 54 cm² +54 cm² = 108 cm²

The area of the logo is 108 cm².

User Jevgenij Kononov
by
2.8k points