right angle math

Two chords of a circle of lengths a cm and b cm are at right angles with each other. The free ends of the chord join to form a diameter. Find the diameter of the circle. Round the answer to one decimal point if required. [given a = 9.9, b = 13.2.] => 19.5 cm or 16.5 cm or 18.5 c..

Is the ratio of the length of legs same as the ratio of their opposite angles in an isosceles right triangle? => Yes or No..

A triangle has two congruent sides and one right angle. Classify the triangle. => isosceles right triangle or scalene triangle or equilateral triangle or None of the above..

Which quadrilateral has two pairs of parallel sides and does not have a right angle? => parallelogram or rectangle or triangle or square..

The number of special quadrilaterals having four right angles are => 2 or 1 or 3 or 4..

How many right angles does a 360° have? => 9 or 4 or 2 or 6..

What is the point at which the perpendicular bisectors of the given right angled triangle bisect? => (- 1, 1) or (0, 0.5) or (0, 0) or (0, 1)..

Which one of the triangles does not contain a right angle as one of the interior angle? => 30°-60°-90° triangle or right triangle or obtuse triangle or none of the above..

The measure of one acute angle of a right triangle is 78°. Find the other acute angle in the triangle. => 102° or 12° or 78° or 22°..

An angle greater than a right angle but less than a straight angle (> 90° and < 180° ) is called ____. => a straight angle or an obtuse angle or an acute angle or a right angle..