Answer: Ф = 20
Step-by-step explanation:
sin2Ф = cos (Ф+ 30 )
if sinα = cosβ , then α and β are complementary ,that is they add up to be 
.
Therefore : 2Ф + Ф + 30 = 90
3Ф + 30 = 90
3Ф = 90 - 30
3Ф = 60
Ф = 20
Answer:
62/100 but simplified is 32/50
First, find the area of the larger triangle:
A=1/2bh
A=1/2(702)
A=351 square yards
Second, find the area of the smaller triangle:
A=1/2bh
A=1/2(225)
A=112.5
To find the shaded area subtract 112.5 from 351:
351-112.5 = 238.5
The area of the shaded region is 238.5 square meters
Answer:
isnt it figure h???
Step-by-step explanation:
