Answer:
Step-by-step explanation:
Answer:
v
x
5
−
2
v
x
4
−
8
x
4
+
3
v
x
3
+
24
x
3
−
4
v
x
2
−
40
x
2
+
v
x
+
56
x
+
8
x
−
40
v
x
5
-
2
v
x
4
-
8
x
4
+
3
v
x
3
+
24
x
3
-
4
v
x
2
-
40
x
2
+
v
x
+
56
x
+
8
x
-
40
Step-by-step explanation:
23) It is right angle triangle, so the sum of acute angle must be equal to 90
sum of ratio units = 2+7 = 9
value of 1 unit = 90/9 = 10
measures of angle would be 2(10) & 7(10) = 20 & 70
Measure of smaller angle is 20
24) It is only graphical work. You have to do it on your own cause I can't show you here, sorry!!
Answer:
Step-by-step explanation:
If the sector wasn't there, the area would be that of a circle. The formula for a circle = pi * r^2
But the sector is there and so you have to account for it.
Area sector = (60/360) * pi * 11^2
Area sector = 1/6 * pi * 121
1/6 of 121 = 20.17
Area of sector = 20.17 pi square cm
