In Fig. 71, if `A B C D\ a n d\ C D E F ,\ ` find`\ /_A C E`

In Fig.84, A B C D\ a n d\ A E C F ;\ /_F C G=90^0\ a n d\ /_B A C=120^0dot Find the values of x , y\ a n d\ zdot

In Fig.95, If A B ,\ C D\ a n d\ E F are straight lines, then x= (a) 5 (b) 10 (c) 20 (d) 30

In Fig. 7.21, A C\ =\ A E , A B\ =\ A D and /_B A D\ =/_E A C . Show that B C\ =\ D E .

In Fig. 6.41, if A B|| D E , /_B A C=35^@ and /_C D E=53^@, find /_D C E .

In Fig.101, A B C D\ a n d\ E F is a transversal. The value of y-x is (a) 30 (b) 35 (c) 95 (d) 25

In Fig. 15.63, A B C D is a trapezium with A B D C and /_B C D=60o . If B F E C is a sector of a circle with centre C and A B=B C=7\ c m and D E=4\ c m , then find the area of the shaded region (U s e\ \ pi=(22)/7\ a n d\ sqrt(3)=1. 732) .

In Fig.87, the corresponding arms of /_A B C\ a n d\ /_D E F are parallel. If /_A B C=75^0, find the /_D E Fdot

In Fig.81, side B C of A B C has been produced to D and C E B Adot If /_A B C=65^0,\ /_B A C=55^0, find /_A C E ,\ /_E C D\ a n d\ /_A C Ddot

In Fig.80, line A C l in e\ D E\ a n d\ /_A B D=32^0dot Find out the angles x\ a n d\ y\ if /_E=122^0dot

Fill in the blanks in the following so that each of the following statements is true Sides opposite to equal angles of a triangle are ....... Angle opposite to equal sides of a triangle are ....... In an opposite to equal sides of a triangle are ....... In a A B C if /_A=/_C , then A B= ..... If altitudes C E a n d B F of a triangle A B C are equal, then A B= ........ In an isosceles triangle A B C with A B=A C , if B D a n d C E are its altitudes, then B D is .......... C E In right triangles A B C a n d D E F , if hypotenuse A B=E F and side A C=D E , then A B C ~= ....