Answer:
obtuse triangle
Step-by-step explanation:
only one angle in a triangle has to be over 90 degrees for it to be and obtuse triangle
hoped this helped
1. 37 degree. A triangle has 180 there is a right angle 90 and then c is 53 which leaves 37 for a
Answer:
The correct option is C ) 109.5°
Therefore,
Step-by-step explanation:
Given:
In Triangle DEF
d = 10
e = 18
f = 12
To Find
angle E = ?
Solution:
In Triangle DEF , Cosine Rule says
Substituting the values we get
Therefore,
............As it is in Second Quadrant
Therefore,
The answer is 0, hope it helps lol
Answer:
Since opposite sides of parallelogram are equal therefore
9r-6=8r+3
r=9
EF=4r+19{opposite sides of parallelogram are equal}
=4×9+19
36+19
=55
Here is you answer.
Step-by-step explanation: