/A and /B are complementary angle .If /A =x+20 and /B=x-10 find /A and /B
Answers
Answered by
1
Answer:Two Angles are Complementary when they add up to 90 degrees.
so, Angle A + Angle B = 90°
(x - 20) + (x - 30) = 90
2x - 50 = 90
2x = 90 + 50
x = 140/2
x = 70
hence, Angle A = (70 - 20) = 50° and Angle B = (70-30) = 40°
Step-by-step explanation:
Answered by
0
A=73
B=17
Explanation:
If angles are complementary, then they are found adjacent to each other in a right angle.
From above, you can see that A+B=90
So I can add my two angles together and have it equal to 90
(
5
x
+
8
)
+
(
x
+
4
)
=
90
5
x
+
8
+
x
+
4
=
90
6
x
+
12
=
90
6
x
=
90
−
12
6
x
=
78
x
=
13
So
A
=
5
x
+
8
=
5
(
13
)
+
8
=
65
+
8
=
73
and
B
=
x
+
4
=
13
+
4
=
17
Just to make sure you are correct, add your A and B together and they should equal to 90
ie
A
+
B
=
73
+
17
=
90
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