3 (a) In triangle DEF, DE = 6cm and DF = 4.8cm. Using a ruler and compasses only, construct triangle DEF. Leave in your construction arcs. The line EF has been drawn for you. E F [2] (b) B A C T D F G E (i) Write down the letter of the triangle that is congruent to triangle T. ................................................. [1] (ii) Write down the letter of the triangle that is similar but not congruent to triangle T. ................................................. [1] © UCLES 2024 0580/32/F/M/24 7 (c) NOT TO SCALE h 62° 62° 7 cm The diagram shows an isosceles triangle. (i) Show that the perpendicular height, h, is 6.58 cm, correct to 3 significant figures. [3] (ii) Calculate the area of the triangle. Give the units of your answer. ........................................... ...................... [3] (iii) Kalpit tries to arrange some of these triangles to make a regular polygon with centre O. O NOT TO SCALE 7 cm 7 cm 62° 62° 7 cm Show that Kalpit cannot make a regular polygon. [3] © UCLES 2024 0580/32/F/M/24 [Turn over 8