Question

Please help and show your work ( no links or files) plz

Answer 1

Explanation:

Use the formula for the area of a triangle,

Area of a triangle =
`(1)/(2)(\text{Base})(\text{Height})`

7). Area of the triangle =
`(1)/(2)(20)(7.4)`

= 74 km²

8). Area of the triangle =
`(1)/(2)(4)(15.4)`

= 30.8 cm²

9). Area of the triangle =
`(1)/(2)(16)(7)`

= 56 m²

10). Area of the triangle =
`(1)/(2)(11)(7.7)`

= 42.35 km²