REFLECTION 5

G. Tawfik

1.THE KITE

Tara is flying her kite using the full length of a 50 m rope. If Tara's arm is 1,53 m high and the rope makes an angle of 30⁰ with the horizontal, how high above the ground is the kite?

2. STREET INTERSECTIONS

Mountain Street and Simpson Street are parallel. Mountain Street cuts Sherbrooke Street at an angle of 72⁰ and Simpson Street cuts Dr. Penfield at an angle of 80⁰ as indicated on the diagram.
Determine all the missing angles and justify your answers

3. In the diagram shown :

                 < CBA = < DBA
       and         BC = BD

      Are the two triangles congruent?
      Justify your answer.

4. In the given diagram:

EF = IH
and EF II IH
Are the two triangles congruent?
Justify your answer.

5. THE ICE-CREAM CONE
A cone with a diameter of 6 cm, is topped by a hemisphere of ice-cream.

The total height of cone and ice-cream is 12 cm.

If the inside of the cone is totally full what is the volume of
ice-cream used?

REFLECTION 5 ANSWERS

1. 26,53 m
2. 72^O , 108^O 80^O , 100^O
3. SAS
4. ASA
5. Total V = 141,4 cm³