Question

What is the area of a triangle with a base of 2 and StartFraction 5 Over 8 EndFraction mm and a height of 10 mm? 6 and one-fourth millimeters squared 13 and StartFraction 1 Over 8 EndFraction millimeters squared 16 and StartFraction 3 Over 8 EndFraction millimeters squared 26 and one-fourth millimeters squared

Answer 1

Second one:

13 and StartFraction 1 Over 8 EndFraction millimeters squared

Explanation:

Area = ½ × base × height

½ × 2⅝ × 10

½ × 21/8 × 10

105/8 mm²

13⅛ mm²

Answer 2

B

Explanation:

We have a triangle with a base of
`2(5)/(8)` mm and a height of 10 mm. The area of a triangle is denoted by:
`A=(1)/(2) bh`, where b is the base and h is the height. Plug these given numbers in:

`A=(1)/(2) bh`

`A=(1)/(2) *2(5)/(8)*10=5*2(5)/(8)=5*(2*8+5)/(8) =5*(21)/(8) =(105)/(8) =13(1)/(8)` mm squared

The answer is thus B.