Question

SECTION-D
Answer the following as asked with calculations (35 to 39) (Each of 4 marks).(20)
35) Draw a triangle PQR with QR = 7 cm, ZQ = 60°, P = 90°, then construct a
triangle AQC whose sides are 3/4 times the correspondings sides of triangle
POR.
OR
5) Let ABC be a right triangle in which AB = 6 cm, BC = 8 cm and ZB = 90°, BD
is the perpendicular from B on AC. The circle through B, C, D is drawn. Constru
the tangents from A to this circle. (Steps of constructions not required)..
Two water taps together can fill a tank in one hour and twelve minutes. Th​

Answer 1

Step-by-step explanation:

Given: Three angles of a quadrilateral are 75°, 90° and 75°.

Let the fourth angle be x.

Using angle sum property of quadrilateral,

75°+90°+75°+x=360°⇒240°+x=360°

⇒x=360°-240°⇒x=120°

So, the measure of the fourth angle is 120°.