ABCD is a quadrilateral. Angle BD4 = 90°, angle BCD = 90°, angle BAD = 40°.
BC = 6cm. BD - 8cm.
(a) Calculate the length of DC. Give your answer correct to 3 significant figures.

1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.