In ΔABC above, BC is produced to D, /AB/ = /AC/ and ∠BAC ...
In ΔABC above, BC is produced to D, /AB/ = /AC/ and ∠BAC = 50o. Find ∠ACD
A.
50o
B.
60o
C.
65o
D.
100o
E.
115o
Correct answer is E
ACB = ABC [Base angles of isoceles triangle]
ACB + ABC + 50o = 180o[sum of angles in a triangle]
ACB + ABC = 180o - 50o = 130o
ACB
130o2
= 65oACD + ACB = 180o[sum of ∠s on a straight line]
ACD + 65o = 180o
ACD = 180o - 65o = 115o
Similar Questions
The graph of the equations y = 2x + 5 and y = 2x2 + x - 1 are shown. Use the information above ...
If y = 243(4x + 5)-2, find dydx when x = 1...
The solution of the quadratic equation px2 + qx + b = 0 is...
Simplify 1x2+5x+6 + 1x2+3x+2...
Three children shared a basket of mangoes in such a way that the first child took 14 of...
A bowl is designed by revolving completely the area enclosed by y = x2 - 1, y = 3 and x ≥ 0 aroun...
In the diagram above, TR = TS and ∠TRS = 60o. Find the value of x...