How can I solve these problems
2 answers:
For the first 6 problems you need to know that all the angles in a triangle are equal to 180°.
for example: #1
60 + 75 + x = 180
x = 180 - (60 + 75)
x = 180 - 135
x = 45°
for numbers 7 and 8, you just need to know that vertical angles are equal to each other.
for example: #7
3x = 45°
x = 45 ÷ 3
x = 15°
for number 9, you need to know that those to angles add up to give you 180° because lines are 180°.
for example: #9
5x + 12 + 68 = 180°
5x + 80 = 180
5x = 180 - 80
5x = 100
x = 100 ÷ 5
x = 20°
I really hope that this made sense to you and that this actually helped you.
Answer:
Step-by-step explanation:
Easy the three angles of a triangle equal 180 degrees
so 60+75 = 135 --> 180-135=
1) 145
2) 35
3) no since the tops a 100 and its a Isosceles triangle two corners left it be 40 for each corner
4) 34 for both x's cause 34+34+112. = 180
5) 180- 120= 60- 10 = 50/4 is (12.5)= x
6) x = 15 cause it be 120- 60 to get 60
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