The diagrams for b ans c are the 2nd and 3rdThe diagrams for b ans c are the 2nd and 3rd (b) In figure (it) given below, AB II DC, ZA = 900, DC = 7 cm, A AC = 25 cm. Calculate BC. (c) In figure (iii) given below, ABCDis a square of side 7 cm. If (i) prove that EFGH is a rectangle. (ii) find the area and perimeter Of EFGH. (it) (iii) Share with your friends Share 1 Anuradha Sharma answered this Hi, B) Here angle A = 90 so AD will be perpendicular to AB and hence angle D will also be 90 degree so, In right angle triangle ADC, AD = 252-72= 24 now AD = CM = 24 cm Also CD = AM = 7 cm so MB = 17-7 = 10 cmso in right angle triangle CMB, BC= 242+102=26 cm Please post single query in a thread 0 View Full Answer