etscigdem etscigdem

27-01-2021
Mathematics

contestada

The diagram shows three straight lines.
с
110°
b
а
21
Work out the sizes of angles a, b and c.
b=
+
+

The diagram shows three straight lines с 110 b а 21 Work out the sizes of angles a b and c b class=

Respuesta :

siya90258 siya90258

27-01-2021

Answer:

a=21°b=70°c=89°

Step-by-step explanation:

a=21°[by vertical opposite angle]

b+110°=180°[by linear angle]

b=180°-110°=70°

a+b+c=180°[by sum of all angle]

21°+70°+c=180

91°+c=180°

c=180°- 91°

c=89°

Answer Link

Otras preguntas

Which change in the temperature of a 1-gram sample of water wouldcause the greatest increase in the average kinetic energy of its molecules?(1) 1°C to 10°C (3)

rename the number use the place value 805 tens =

Developed countries typically have _______. a. a larger rural population b. a larger urban population c. less access to goods and services d. little access t

Divergent faults form when tectonic plates _____. move away from one another stop moving crash into one another slide past each other

A person starts to eat a hamburger. As she takes a bite and chews, an enzyme called salivary lipase helps to begin the process of fat digestion. Which of these

The French Directory was overthrown in 1799 by a military officer named _____.

(Worth 15 PTS) Explain how you could use your own height and the lengths of shadows to figure out the height of a tall building without measuring it. It may hel

“The blind man and the elephant is a metaphor that shows how (Points : 1) psychological theories don’t make sense. many different psychological theories contrib

a milk container capacity is one gallon. How many cups would that equal ?

210.0 °C a gas has a volume of 8.00 L. What is the volume of this gas at -23.0°C?