
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>
THE PERIMETER OF THE PRECEDING FIGURE 17.8 METERS
Original is 100
1/4 off is 25 off
75 left
10% what's left is 75-7.5=67.5
this was already out of 100
100=67.5=32.5
1/4 off and then 10% off is the same as 32.5% discount