what is the answer,give all question answer step by step please
Answers
Answer:
K1.
(a) 3cm, 3cm, 2cm
3 + 3 > 2
6 > 2 (Yes)
3 + 2 > 3
5 > 3 (Yes)
3 + 2 > 3
5 > 3 (Yes)
It is possible to construct.
(B) 5 cm, 5.5 cm, 13 cm
5 + 5.5 > 13
10.5 > 13 (No)
5.5 + 13 > 5
18.5 > 5 (Yes)
5 + 13 > 5.5
18 > 5.5 (Yes)
It is not possible to construct.
K2.
A = 7 cm
B = 6 cm
C = ?
A + B > C
B + C > A
A + C > B
7 + 6 > C
13 > C
6 + C > A
7 + C > B
The minimum value that can fit for C is 2 cm.
K3.
A = 12 cm
B = 8 cm
C = ?
12 + 8 > C
20 > C
8 + C > 12
12 + C > 8
The minimum value that can fit for C is 5 cm.
S5.
Let the equal angles be x
x + x + 95 = 180
2x = 180 - 95
2x = 85
x = 42.5
The equal angles measure 42.5 degrees each.
S6.
Measure of interior angle in equilateral triangle = 60 degrees
Segment BCD forms a linear pair
180 - 60 = exterior angle
120 = exterior angle
Hope it helps
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