Answer:
b. x+y=18
20x+25y=400
Step-by-step explanation:
Answer:
90°
Step-by-step explanation:
Through point O draw a ray on left side of O which is || to AB & CD and take any point P on it.
Therefore,
∠ABO + ∠BOP = 180° (by interior angle Postulate)
118° + ∠BOP = 180°
∠BOP = 180° - 118°
∠BOP = 62°.... (1)
Since, ∠BOP + ∠POD = ∠BOD
Therefore, 62° + ∠POD = 152°
∠POD = 152° - 62°
∠POD = 90°.....(2)
∠POD + ∠ODC = 180° (by interior angle Postulate)
90° + ∠ODC = 180°
∠ODC = 180° - 90°

Answer:
See Explanation
Step-by-step explanation:
<em>The question is incomplete as the image that illustrates the scenario is not given.</em>
<em>However, I can deduce that the question is about a right-angled triangle.</em>
<em>So, I will give a general explanation on how to find each of the side of the triangle, given a side and an angle.</em>
<em />
<u>For triangle A (solve for b)</u>
Using cosine formula.


Make b the subject

<u>For triangle B (solve for b)</u>
Using cosine formula.


Make b the subject

<u>For triangle C (solve for b)</u>
Using cosine formula.


Make b the subject

The ratio is width over length.
Make a fraction with the width on top and the length on the bottom:
44/70
Both numbers are even and can be divided by 2,
so the simplified fraction becomes 22/35
3/4 + 1/8
you gotta find a common denominator
so you end up with
(24+4)/32
=28/32
7/8 is now complete