Step-by-step explanation:
ABC is an isoceles triangle (both legs are equally long). and AB is its baseline.
OC is now a median for ABC splitting the angle at C and AB in half.
so, we have 2 right-angled triangles : OAC and OBC.
the half-angles at C are 42/2 = 21°.
the angles at A and B are 90°.
and the half-angles at O are 180 - 90 - 21 = 69°.
remember that the sum of all angles in a triangle must always be 180°.
AB are the heights of both of these triangles.
the single height is sin(69)×7 = 6.535062985... cm
and so,
AB = 2× height = 13.07012597... cm.
Answer:
first one
Step-by-step explanation:
same x value can't have more than one y value
13 is 52% of 25.
Hope This Helps You!
Good Luck Studying :)
Answer:
i dont even know so u dont know y i M replying but just guess and do ur best cuz i need help on dis too
Step-by-step explanation:
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Hello,
h=7+6/12*x or h=7+x/2 (in ft)
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