help pls ill mark u if it ia correct
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help pls ill mark u if it ia correct
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please dear
Verified answer
Answer:
1)Here two base angles are equal as it is a isosceles triangle
Let the base angle =x
°
Sum of all angles in a triangle is equal to 180 degrees
⇒100+x+x=180
⇒2x=80
⇒x=40
°
2)Let distance from A to B be x
Time for travel from A to B= x/20
Time for travel from B to A= x/30
Hence,speed for total distance 2x is:
30
x
+
20
x
2x
=
5x
2x×60
=24 km\hr
Step-by-step explanation:
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