
Since ∆AFB is similar to ∆ABC.
- < F = < B (corresponding angle)
- < G = < C (corresponding angle)
- < A = common.
<u>In </u><u>∆</u><u>A</u><u>BC,</u>
⇛< A + < B + < C = 180°
⇛37° + 65° + < C = 180°
⇛102° + < C = 180°
⇛< C = 78°
We know that, < AGF / < G = < C
So, Measure of angle < AGF = <u>7</u><u>8</u><u>°</u><u> </u><u>(</u><u>ans)</u>
To make this simple
If two pairs corresponding angles in a pair of triangles are congruent then the triangles are similar
Answer:
40
Step-by-step explanation:
D=2r so 2*20=40
Step-by-step explanation:
Let base of triangle be x m.
Therefore, altitude =( x + 2)m

Therefore
Altitude = 10 m
Base = 8 m